/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponentsEditorOnly/Public/EditorModelingObjectsCreationAPI.h
Create a new material object based on the data in CreateMaterialParams
a results data structure, containing a result code and information about any new objects created
virtual [FCreateActorResult](API\Plugins\ModelingComponents\FCreateActorResult) CreateNewActor ( const [FCreateActorParams](API\Plugins\ModelingComponents\FCreateActorParams) & CreateActorParams )